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How to install multiple python packages at once using pip

...nts files for their general layout and syntax - note that you can generate one based on current environment / site-packages with pip freeze if you want a quick example - e.g. (based on having installed wsgiref and boto in a clean virtualenv): $ pip freeze boto==2.3.0 wsgiref==0.1.2 ...
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How do I make a delay in Java?

... java.util.concurrent.TimeUnit: TimeUnit.SECONDS.sleep(1); To sleep for one second or TimeUnit.MINUTES.sleep(1); To sleep for a minute. As this is a loop, this presents an inherent problem - drift. Every time you run code and then sleep you will be drifting a little bit from running, say, eve...
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?? Coalesce for empty string?

...proach. Since you're already using an extension method, why not just make one that returns the value or a default: string result = s.SiteNumber.ConvertNullOrEmptyTo("No Number"); share | improve ...
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How can I get the timezone name in JavaScript?

I know how to get the timezone offset, but what I need is the ability to detect something like "America/New York." Is that even possible from JavaScript or is that something I am going to have to guestimate based on the offset? ...
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How do I detect what .NET Framework versions and service packs are installed?

...---- 1.0 HKLM\Software\Microsoft\Active Setup\Installed Components\{78705f0d-e8db-4b2d-8193-982bdda15ecd}\Version 1.0[1] HKLM\Software\Microsoft\Active Setup\Installed Components\{FDC11A6F-17D1-48f9-9EA3-9051954BAA24}\Version 1.1 HKLM\Software\Microsoft\NE...
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How to add multiple objects to ManyToMany relationship at once in Django ?

... the generated SQL I see only a single insert statement: INSERT INTO app_one_twos (one_id, two_id) VALUES (1, 1), (1, 2), (1, 3), (1, 4); This is in Django 1.4. – Klaas van Schelven Mar 26 '13 at 16:54 ...
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Utility classes are evil? [closed]

...tilities that can be used on any Java Collection. These aren't specific to one particular type of Collection, but instead implement algorithms that can be used on any Collection. Really, what you need to do is think about your design and determine where it makes the most sense to put the methods. U...
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How to find all positions of the maximum value in a list?

...want all of them, SilentGhost's solution is much prettier and less error prone. – nmichaels Oct 21 '10 at 16:42 7 ...
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How do I get formatted JSON in .NET using C#?

... This method also saves one from making JSON format errors. – Anshuman Goel Jan 17 '19 at 21:41 add a comment ...
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Connect Device to Mac localhost Server? [closed]

How do I allow any device, e.g., iPhone, to connect over a WLAN to my Mac's localhost server? 14 Answers ...